Genetics Answers

In humans the ability to roll your tongue is a dominant trait. If Jean Poole, who is heterozygous and can roll her tongue, and Reece Granger, who can roll his tongue but is homozygous have a child, what will be the genotypic and phenotypic ratios for their offspring possibilities?

What do the events of anaphase I have to do with the letters that are placed outside of a Punnett square?

Corporations that have patented genetically modified (GM) seeds legally require farmers to buy new seeds from them each planting season. Corporations that find GM crops on a farm that did not purchase their seed can take the farmer to court. However, natural processes such as cross-pollination can result in the migration of GM crops to neighboring farms. Analyze the social, legal, and economic issues associated with genetically modified plants.

Questions to Consider:

What is a genetically modified crop? How are they produced?
Why do corporations make GM crops?
What are the potential benefits associated with GM crops?
What are the potential risks?
Should private companies be able to patent life forms, including genetic material?
What are the economic arguments for/against the use of GM crops?

As with any new technology, there are social, ethical, and legal issues to take into consideration. In the development of gene therapy, there have been a number of questions posed as to whether or not this type of treatment should be allowed. What are the social, ethical, and legal implications of using gene therapy to treat diseases and disorders?

1. Consider a genetic sequence, and particularly the TA- rich region. What would happen if all of the adenosine residues were mutated to become guanine residues? You don't have to actually know; just speculate what is the most likely thing that would happen.

2. Think about the structure of DNA and the steps of transcription. Brainstorm a few things that must happen to the DNA structure for transcription factors to be able to initiate transcription.

If you cross a homozygous dominant almond shape eyes with homozygous recessive round shape eyes, what is the probability that the offspring will have phenotype of almond shape eyes?

In garden pea seeds, smooth seed coat is dominant over rough seed coat.With the aid of a genetic diagram determine the result if a homozygous rough pea is crossed with a smooth seed coat plant whose parents were rough coated

Jim was married once before and had a daughter with cystic fibrosis. A sister of his current wife katie died of cystic fibrosis Neither Jim nor any of their parents have cystic fibrosis If Jim and katie have three babies what is the probability that one or more will have cystic fibrosis?

1.Select, copy and paste a region of DNA sequence from this CDKN2A gene with 800 bp containing the site of the mutation (let be in the middle).
2.How to AMPLIFY this 800 bp sequence and CONFIRM its expected size?
3.Explain the above AMPLIFICATION method in detail mentioning all steps and reaction ingredients.
4.Explain the above size CONFIRMATION method in detail mentioning all steps and reaction ingredients,to deduce the correct ORF from the mRNA sequence of the gene and underline the mutated amino acid.
*they are all for the same gene CDKN2A

If fur color in guinea pigs demonstrated incomplete dominance predict what fur color the offspring of a white and a black guinea pig may have if they are mates together and why